Personal data has become a crucial production factor in the digital economy era. The transportation sector, being a data-intensive industry, contains much personal data. To address current issues of data storage insecurity and difficulties in data circulation and sharing, constructing a new data service model—Personal Data Bank for Transportation was proposed. This bank emulates the operational model of commercial banks, employing blockchain technology and distributed storage solutions to enhance data security and privacy protection. A contribution-based incentive strategy fosters collaboration between users and the data bank, underlining the importance of user participation and the potential benefits for all stakeholders. The Personal Data Bank for Transportation facilitates data storage, viewing and purchase retrieval, thereby achieving data circulation while clarifying ownership issues in data transactions. Its goal is to ensure personal data’s secure and efficient flow and improve the relationship between enterprises and individual data subjects.